agenttesla | d3842fcfe3df7efedf048a12e97555a857b59a43c26308a47aced12a1edcc428

General

Target

91x238L9RRduvJF.exe
Size

804KB
MD5

49b446341decd153c56637ef759c0612
SHA1

ce42d15a9ffd291c89a8810217b0f9ae7d6f85ce
SHA256

d3842fcfe3df7efedf048a12e97555a857b59a43c26308a47aced12a1edcc428
SHA512

6b4c90e5387b1e22f6dddd544fa36cfa39e8d3941a49640502ce01f085528270fe51b9a69e1f19f5ee21a1ca2073ce00a3c79904c6172659ede44613917debae
SSDEEP

12288:WRbKE6jD/62iNG5nF8BmMzeFjdrpAtKbG4O7Xx/cKT53n11Yu8j4b:WNKtD/61IGmTlpAH4M9cKTpwu

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://discord.com/api/webhooks/1179504720205856969/B43YV8FQQ3fdR-uW_OyGnX6VvnYrSqTFk2OymXDpd-oX57sjQwwu5bIRXdjpwwSOHyyt

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

6 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

91x238L9RRduvJF.exe

description pid process target process

PID 3572 set thread context of 1308 3572 91x238L9RRduvJF.exe 91x238L9RRduvJF.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1628 1308 WerFault.exe 91x238L9RRduvJF.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

91x238L9RRduvJF.exe

pid process

1308 91x238L9RRduvJF.exe
1308 91x238L9RRduvJF.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

91x238L9RRduvJF.exe

description pid process

Token: SeDebugPrivilege 1308 91x238L9RRduvJF.exe

flow	ioc
6	api.ipify.org

description	pid	process	target process
PID 3572 set thread context of 1308	3572	91x238L9RRduvJF.exe	91x238L9RRduvJF.exe

pid	pid_target	process	target process
1628	1308	WerFault.exe	91x238L9RRduvJF.exe

pid	process
1308	91x238L9RRduvJF.exe
1308	91x238L9RRduvJF.exe

description	pid	process
Token: SeDebugPrivilege	1308	91x238L9RRduvJF.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

91x238L9RRduvJF.exe

description	pid	process	target process
PID 3572 wrote to memory of 1308	3572	91x238L9RRduvJF.exe	91x238L9RRduvJF.exe
PID 3572 wrote to memory of 1308	3572	91x238L9RRduvJF.exe	91x238L9RRduvJF.exe
PID 3572 wrote to memory of 1308	3572	91x238L9RRduvJF.exe	91x238L9RRduvJF.exe
PID 3572 wrote to memory of 1308	3572	91x238L9RRduvJF.exe	91x238L9RRduvJF.exe
PID 3572 wrote to memory of 1308	3572	91x238L9RRduvJF.exe	91x238L9RRduvJF.exe
PID 3572 wrote to memory of 1308	3572	91x238L9RRduvJF.exe	91x238L9RRduvJF.exe
PID 3572 wrote to memory of 1308	3572	91x238L9RRduvJF.exe	91x238L9RRduvJF.exe
PID 3572 wrote to memory of 1308	3572	91x238L9RRduvJF.exe	91x238L9RRduvJF.exe

C:\Users\Admin\AppData\Local\Temp\91x238L9RRduvJF.exe
"C:\Users\Admin\AppData\Local\Temp\91x238L9RRduvJF.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3572

C:\Users\Admin\AppData\Local\Temp\91x238L9RRduvJF.exe
"C:\Users\Admin\AppData\Local\Temp\91x238L9RRduvJF.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1308

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1308 -s 1928
3⤵
- Program crash
PID:1628

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1308 -ip 1308
1⤵
PID:1172

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

3

T1552

Credentials In Files

3

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\91x238L9RRduvJF.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/1308-11-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1308-19-0x0000000074EF0000-0x00000000756A0000-memory.dmp

Filesize
7.7MB

Download
memory/1308-18-0x0000000006EE0000-0x0000000006F30000-memory.dmp

Filesize
320KB

Download
memory/1308-16-0x0000000005620000-0x0000000005630000-memory.dmp

Filesize
64KB

Download
memory/1308-17-0x00000000055A0000-0x0000000005606000-memory.dmp

Filesize
408KB

Download
memory/1308-15-0x0000000074EF0000-0x00000000756A0000-memory.dmp

Filesize
7.7MB

Download
memory/3572-8-0x00000000056F0000-0x00000000056FA000-memory.dmp

Filesize
40KB

Download
memory/3572-0-0x0000000000600000-0x00000000006D0000-memory.dmp

Filesize
832KB

Download
memory/3572-9-0x0000000006720000-0x000000000679C000-memory.dmp

Filesize
496KB

Download
memory/3572-10-0x00000000063C0000-0x000000000645C000-memory.dmp

Filesize
624KB

Download
memory/3572-7-0x0000000005550000-0x0000000005558000-memory.dmp

Filesize
32KB

Download
memory/3572-14-0x0000000074EF0000-0x00000000756A0000-memory.dmp

Filesize
7.7MB

Download
memory/3572-6-0x0000000005520000-0x0000000005538000-memory.dmp

Filesize
96KB

Download
memory/3572-5-0x00000000050C0000-0x00000000050CA000-memory.dmp

Filesize
40KB

Download
memory/3572-4-0x00000000053E0000-0x00000000053F0000-memory.dmp

Filesize
64KB

Download
memory/3572-3-0x0000000005150000-0x00000000051E2000-memory.dmp

Filesize
584KB

Download
memory/3572-2-0x0000000005700000-0x0000000005CA4000-memory.dmp

Filesize
5.6MB

Download
memory/3572-1-0x0000000074EF0000-0x00000000756A0000-memory.dmp

Filesize
7.7MB

Download

Analysis

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